62a20ce454
Signed-off-by: speech_white <humin29@huawei.com> (cherry picked from commit 39c2c5154122fef74060ffd6dbbe8cd4fdd9d21b)
46 lines
1.6 KiB
Diff
46 lines
1.6 KiB
Diff
From ec0147b5690e6cae2cc4555f78b87defee59c946 Mon Sep 17 00:00:00 2001
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From: Huisong Li <lihuisong@huawei.com>
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Date: Thu, 5 May 2022 20:27:03 +0800
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Subject: [PATCH] net/hns3: fix pseudo-sharing between threads
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Some fields in the end of 'struct hns3_rx_queue' and
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'struct hns3_tx_queue' are not accessed in the I/O path.
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But these fields may be accessed in other threads, which may lead to the
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problem of cache pseudo-sharing of IO threads. This patch add a
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cacheline alignment to avoid it.
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Fixes: 9261fd3caf1f ("net/hns3: improve IO path data cache usage")
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Cc: stable@dpdk.org
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Signed-off-by: Huisong Li <lihuisong@huawei.com>
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Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
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---
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drivers/net/hns3/hns3_rxtx.h | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/hns3/hns3_rxtx.h b/drivers/net/hns3/hns3_rxtx.h
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index a000318357..62efc854e4 100644
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--- a/drivers/net/hns3/hns3_rxtx.h
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+++ b/drivers/net/hns3/hns3_rxtx.h
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@@ -348,7 +348,7 @@ struct hns3_rx_queue {
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* The following fields are not accessed in the I/O path, so they are
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* placed at the end.
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*/
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- void *io_base;
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+ void *io_base __rte_cache_aligned;
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struct hns3_adapter *hns;
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uint64_t rx_ring_phys_addr; /* RX ring DMA address */
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const struct rte_memzone *mz;
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@@ -521,7 +521,7 @@ struct hns3_tx_queue {
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* The following fields are not accessed in the I/O path, so they are
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* placed at the end.
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*/
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- void *io_base;
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+ void *io_base __rte_cache_aligned;
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struct hns3_adapter *hns;
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uint64_t tx_ring_phys_addr; /* TX ring DMA address */
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const struct rte_memzone *mz;
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--
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2.33.0
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